Simplified? Math questions I swear.

Your answer for this math problem is -51.
You first do the square root of 289, then you multiply the answer you got by -3.
The square root of 289 is 17, and 17 times -3 is - 51!
Hope this helps!!
Step-by-step explanation:
√17²
√17²=17
=17
=-3·17
=-51
I hope this helps you.